Your settings for cookies and pixels on

Select which cookies and pixels we are allowed to use. Please note that some cookies are necessary for technical reasons and must be enabled in order to maintain the functionality of our website. If you would like to benefit from every service on our website, please consider that you need to choose every cookie category. For more information, please refer to our Privacy Policy.

    • Maintain the stability of the website.
    • Save your log-in data.
    • Allow to improve the user experience.
    • They provide advertisements that are relevant to your interests.
    • They allow you to share interesting content directly with your social media network.

You can change your cookie and pixel settings on at any time via our data privacy.


Show Details
Select all Confirm selection

Ullrich Sierau

Mayor of the City of Dortmund


  • Year of birth: 1956
  • Place of birth: Halle/Saale
  • Nationality: German


  • Obtained a degree in spatial planning in Dortmund and planning in Oxford


1983 - 1985

Internship in the field of urban development with the State of North Rhine-Westphalia

1986 - 1994

Ministry for Urban Development, Housing and Transportation, State of North Rhine-Westphalia

1994 - 1999

Director at the Institute of State and Urban Development Research, State of North Rhine-Westphalia

May 1999 - March 2005

Head of the Environment and Planning Department at the City of Dortmund

April 2005 - February 2007

Head of the Planning Department at the City of Dortmund

February 2007 - October 2009

Manager of the City of Dortmund and Head of the Planning, Urban Development and Infrastructure Department

since October 2009

Mayor of the City of Dortmund

Membership in other mandatory supervisory boards

  • Dortmunder Energie- und Wasserversorgung GmbH (Chairman)
  • Dortmunder Stadtwerke AG (Chairman)
  • Dortmunder Stadtwerke Holding GmbH (Chairman)
  • KEB Holding AG (Chairman)

Membership in comparable domestic and foreign supervisory committees of commercial enterprises

  • KSBG Kommunale Verwaltungsgesellschaft GmbH
  • Schüchtermann-Schiller’sche Kliniken Bad Rothenfelde GmbH & Co. KG
  • Sparkasse Dortmund (Chairman)

Core competences

  • Utility sector
  • Public sector
  • Managerial experience
  • Accounting and internal audit
  • Relevant knowledge in public services, change management, urban development and sustainability as well as in energy supply and the utility sector